The last movie I actually saw at the cinema was Borat, which i'm putting firmly in the "funny-but-could-well- have-been-appreciated-as-a-DVD-at-home" column. I think a good way to rate movies is by the extent to which you think it was worth watching them at the cinema. Regardless of bigger size, nicer sound etc., was it just enjoyable enough to warrant the pay-out?
The Prestige, to my mind, really was worth it. As stated before, Bowie as Tesla was effin' awesome, and the concept of warring magicians was just cool. Sure, it had its problems (as have most of the 'otherwise awesome' movies i've seen lately - The Departed, Little Miss Sunshine etc.), but it was a lot of fun, too.